Ohn fanning



J. FANNING. DRILLING APPARATUS.

No. 66,229. Patented July 2,4 1867.

l @uiten gieten @einer @frn foHN FANNING, oF NEW YORK, N. Y. 'LenenParam No. 66,229, dated Juzg 2, 186.7.

IMPRDVED DRILLIN G APPARATUS.

'lO ALL WHOM IT MAY QONCERN:

Be it known 'that I, JOHN FANNING, of the city and State of New York,have invented, inode, and applied to use a certain'new and usefulImprovement in Ha.nd-l)rill Stocks; and I do hereby declare thefollowing to be o, full, clear, end exact description of the saidinvention, reference being had to the annexed drawing, making part ofthis specification, wherein l Figure 1 is a. longitudinal section ofsaid drill-stock;- and Figure 2 is a View at the end of the said stock.`

Similar marks of reference denote the same parts:

'.lhe object of my said invention is toeonnnunicate to the drill alarger number of rotations than is given to the apparat-us by hand,so'that by a cheap ,and simple contrivrtnoe a. small l'drill may berotated-with greet spoed. The nature of'my said invention consists inabend-drill stock in which the power is applied on the line of the axisof the drill and transmitted to said drill by a planetary movementA.that increases the speed of thc drill without changing the mnnnerofapplying the power to the stock or the mnnncr of pressing the drill toits work.

In the drawing, a is the drill or boring tool, of any usunl character,secured in any convenient manner within the sockets of the mandrel b.This znnndrcl b is sustained in the pipe c of the stationary internalgearwheel d. e is a handle projecting from the side ot' the saidgeur-cl, by which the tool inny be guided toits place and the wheeld beprevented fromf'nturning. f is a square or other connection forreeeivinga brace or other means for applying, by hond o r otherwise,rotation to the sqnnref and its projecting crank g that carries thepinion z', working at one side into the teetlrof the internal gear d andat the other side into the wheel h on the nandrel' b. The mandrel bruins into e hole in the square f, and the parts are connected andallowed to turn by 1L-pin, o, entering a groove-in Ii. It will beunderstood that the wheel dbeng held stntionery'the wheel It will berevolved faster than the squarefin proportion to the number of teeth ot'd nnd It, the increased action of the pinion z', in consequence of itsprogression and rotation.

- This irriprovement'might be applied to give extra speed to smelldrills when introduced in a. lathe adapted to large drills, and if thesquaref was stationery and the wheel d worked by a ratchet and leverthis apparatus might be used where a. brace could not bc employed, andby inverting' the position `ofthe drill and the power n slowerl motionvcon be given to the drill for .heavy work.

What I claim, and desire to secure by Letters Potent, is'- A drillingapparatus, constructed as described and shown.

In witness whereof I have hereunto set my signature this twenty-fth duyof February, A. D. 1867.

JOHN FANNING. Witnesses l i Cans. H. SMITH,

GEO. D. WALKER.

